/* * (C) Copyright 2001 * Bill Hunter, Wave 7 Optics, williamhunter@mediaone.net * and * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include <common.h> #include <config.h> #include <rtc.h> #include "errors.h" #include "dtt.h" /* for LM75 DTT POST test */ #define DTT_READ_TEMP 0x0 #define DTT_CONFIG 0x1 #define DTT_TEMP_HYST 0x2 #define DTT_TEMP_SET 0x3 #if defined(CONFIG_RTC_M48T35A) void rtctest(void) { volatile uchar *tchar = (uchar*)(CONFIG_SYS_NVRAM_BASE_ADDR + CONFIG_SYS_NVRAM_SIZE - 9); struct rtc_time tmp; /* set up led code for RTC tests */ log_stat(ERR_RTCG); /* * Do RTC battery test. The first write after power up * fails if battery is low. */ *tchar = 0xaa; if ((*tchar ^ 0xaa) != 0x0) log_warn(ERR_RTCBAT); *tchar = 0x55; /* Reset test address */ /* * Now lets check the validity of the values in the RTC. */ rtc_get(&tmp); if ((tmp.tm_sec < 0) | (tmp.tm_sec > 59) | (tmp.tm_min < 0) | (tmp.tm_min > 59) | (tmp.tm_hour < 0) | (tmp.tm_hour > 23) | (tmp.tm_mday < 1 ) | (tmp.tm_mday > 31) | (tmp.tm_mon < 1 ) | (tmp.tm_mon > 12) | (tmp.tm_year < 2000) | (tmp.tm_year > 2500) | (tmp.tm_wday < 1 ) | (tmp.tm_wday > 7)) { log_warn(ERR_RTCTIM); rtc_reset(); } /* * Now lets do a check to see if the NV RAM is there. */ *tchar = 0xaa; if ((*tchar ^ 0xaa) != 0x0) log_err(ERR_RTCVAL); *tchar = 0x55; /* Reset test address */ } /* rtctest() */ #endif /* CONFIG_RTC_M48T35A */ #ifdef CONFIG_DTT_LM75 int dtt_test(int sensor) { short temp, trip, hyst; /* get values */ temp = dtt_read(sensor, DTT_READ_TEMP) / 256; trip = dtt_read(sensor, DTT_TEMP_SET) / 256; hyst = dtt_read(sensor, DTT_TEMP_HYST) / 256; /* check values */ if ((hyst != (CONFIG_SYS_DTT_MAX_TEMP - CONFIG_SYS_DTT_HYSTERESIS)) || (trip != CONFIG_SYS_DTT_MAX_TEMP) || (temp < CONFIG_SYS_DTT_LOW_TEMP) || (temp > CONFIG_SYS_DTT_MAX_TEMP)) return 1; return 0; } /* dtt_test() */ #endif /* CONFIG_DTT_LM75 */ /*****************************************/ void post2(void) { #if defined(CONFIG_RTC_M48T35A) rtctest(); #endif /* CONFIG_RTC_M48T35A */ #ifdef CONFIG_DTT_LM75 log_stat(ERR_TempG); if(dtt_test(2) != 0) log_warn(ERR_Ttest0); if(dtt_test(4) != 0) log_warn(ERR_Ttest1); #endif /* CONFIG_DTT_LM75 */ } /* post2() */